First teased in Patton Oswalt's Comic-Con 2014 video, The Hollywood Reporter reveals that 'G.I. Joe: Retaliation' and 'Friday Night Lights' star Palicki will appear in the second season's fifth episode as Bobbi Morse, with the potential to return, though THR notes that the "Mockingbird" could arrive "perhaps not as an ally." For her part, Morse has been represented through Marvel mythology as a top S.H.I.E.L.D. agent and costumed vigilante, though usually without any actual superpowers. Mockingbird also shares a romantic past with Hawkeye (played by Jeremy Renner in the MCU), and is frequently depicted as a member of the West Coast Avengers.

We're keeping an open mind on 'Agents of S.H.I.E.L.D.' season 2, now that 'Captain America: The Winter Soldier' won't be throwing any further wrenches into the works, but what say you? Does Adrianne Palicki's appearance as Marvel's Mockingbird have you excited for new episodes? Tell us in the comments what you want to see when Marvel's 'Agents of S.H.I.E.L.D.' returns for season 2 on September 23!

Oh and hey, need to catch up on the first season with only 60 seconds to spare? We've got you covered!